THE animal rights zealots at PETA have a slightly selective memory. They had no problem using Tim Gunn to promote their Web site DonnaKaranBunnyButcher.com even though Gunn’s “Project Runway” co-star, Michael Kors, still uses fur in his collection. Asked to comment, PETA’s Dan Mathews told Page Six, “Michael Kors, sadly, told me he would ‘design anything as long as somebody would buy it.’ If we can’t reach people ourselves, we rely on our industry allies to help open people’s minds, which is why we value our relationships with individuals like Stella McCartney, Calvin Klein and now Tim Gunn.”